Researchers harness sunlight to generate quantum entanglement
Sunlight may provide an energy-efficient alternative to lasers used in quantum computing The post Researchers harness sunlight to generate quantum entanglement appeared first on Physics World .
Researchers have found a way to harness the abundant energy of sunlight to generate entangled photons, a key component for quantum computers. This groundbreaking development, published in Optica, could potentially revolutionize the field by providing a more energy-efficient alternative to traditional laser-pumped systems. The collaboration between the University of Ottawa and the Max Planck Institute for the Science of Light involved overcoming long-standing assumptions about the required properties of optical input.
By focusing sunlight using a Fresnel lens, spectral filter, and glass cone-shaped concentrator, the researchers were able to concentrate the light to a point that could be coupled to a fiber for inducing spontaneous parametric down-conversion (SPDC). The resulting entangled photons violated Bell's inequality, demonstrating quantum behavior.
The energy efficiency and scalability of this sunlight-driven method could significantly impact the future of quantum technology, potentially enabling the integration of quantum systems without the large energy costs associated with lasers.
Written by urgent.news from Physics World's reporting — not their text. Machine-written — may contain errors; check the original before relying on it.
